moel@1: /*
moel@1:   
moel@1:   Version: MPL 1.1/GPL 2.0/LGPL 2.1
moel@1: 
moel@1:   The contents of this file are subject to the Mozilla Public License Version
moel@1:   1.1 (the "License"); you may not use this file except in compliance with
moel@1:   the License. You may obtain a copy of the License at
moel@1:  
moel@1:   http://www.mozilla.org/MPL/
moel@1: 
moel@1:   Software distributed under the License is distributed on an "AS IS" basis,
moel@1:   WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
moel@1:   for the specific language governing rights and limitations under the License.
moel@1: 
moel@1:   The Original Code is the Open Hardware Monitor code.
moel@1: 
moel@1:   The Initial Developer of the Original Code is 
moel@1:   Michael Möller <m.moeller@gmx.ch>.
moel@1:   Portions created by the Initial Developer are Copyright (C) 2009-2010
moel@1:   the Initial Developer. All Rights Reserved.
moel@1: 
moel@1:   Contributor(s):
moel@1: 
moel@1:   Alternatively, the contents of this file may be used under the terms of
moel@1:   either the GNU General Public License Version 2 or later (the "GPL"), or
moel@1:   the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
moel@1:   in which case the provisions of the GPL or the LGPL are applicable instead
moel@1:   of those above. If you wish to allow use of your version of this file only
moel@1:   under the terms of either the GPL or the LGPL, and not to allow others to
moel@1:   use your version of this file under the terms of the MPL, indicate your
moel@1:   decision by deleting the provisions above and replace them with the notice
moel@1:   and other provisions required by the GPL or the LGPL. If you do not delete
moel@1:   the provisions above, a recipient may use your version of this file under
moel@1:   the terms of any one of the MPL, the GPL or the LGPL.
moel@1:  
moel@1: */
moel@1: 
moel@1: using System;
moel@1: using System.Collections.Generic;
moel@1: using System.IO;
moel@1: using System.IO.Ports;
moel@1: using System.Threading;
moel@1: 
moel@1: namespace OpenHardwareMonitor.Hardware.TBalancer {
moel@1:   public class TBalancerGroup : IGroup {
moel@1: 
moel@1:     private List<TBalancer> hardware = new List<TBalancer>();
moel@1: 
moel@1:     public TBalancerGroup() {
moel@1: 
moel@1:       string[] portNames = SerialPort.GetPortNames();
moel@1:       for (int i = portNames.Length - 1; i >= 0; i--) {
moel@1:         try {
moel@1:           SerialPort serialPort =
moel@1:             new SerialPort(portNames[i], 19200, Parity.None, 8, StopBits.One);
moel@1:           serialPort.Open();
moel@1:           bool isValid = false;
moel@1:           if (serialPort.IsOpen && serialPort.CDHolding &&
moel@1:             serialPort.CtsHolding) {
moel@1:             serialPort.DiscardInBuffer();
moel@1:             serialPort.DiscardOutBuffer();
moel@1:             serialPort.Write(new byte[] { 0x38 }, 0, 1);
moel@1:             int j = 0;
moel@1:             while (serialPort.BytesToRead == 0 && j < 2) {
moel@1:               Thread.Sleep(100);
moel@1:               j++;
moel@1:             }
moel@1:             if (serialPort.BytesToRead > 0 && 
moel@1:               serialPort.ReadByte() == TBalancer.STARTFLAG) 
moel@1:             {
moel@1:               while (serialPort.BytesToRead < 284 && j < 5) {
moel@1:                 Thread.Sleep(100);
moel@1:                 j++;
moel@1:               }
moel@1:               if (serialPort.BytesToRead == 284) {
moel@1:                 int[] data = new int[285];
moel@1:                 data[0] = TBalancer.STARTFLAG;
moel@1:                 for (int k = 1; k < data.Length; k++)
moel@1:                   data[k] = serialPort.ReadByte();
moel@1:                 
moel@1:                 // check protocol version
moel@1:                 isValid = (data[274] == TBalancer.PROTOCOL_VERSION); 
moel@1:               }
moel@1:             }
moel@1:           }
moel@1:           serialPort.DiscardInBuffer();
moel@1:           serialPort.Close();
moel@1:           if (isValid) {
moel@1:             hardware.Add(new TBalancer(portNames[i]));
moel@1:             return;
moel@1:           }
moel@1:         } catch (IOException) { } catch (UnauthorizedAccessException) { } 
moel@1:           catch (NullReferenceException) { }
moel@1:       }
moel@1:     }
moel@1: 
moel@1:     public IHardware[] Hardware {
moel@1:       get {
moel@1:         return hardware.ToArray();
moel@1:       }
moel@1:     }
moel@1: 
moel@1:     public string GetReport() {
moel@1:       return null;
moel@1:     }
moel@1: 
moel@1:     public void Close() {
moel@1:       foreach (TBalancer tbalancer in hardware)
moel@1:         tbalancer.Close();
moel@1:     }
moel@1:   }
moel@1: }